aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/ide
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/ide-cd.c50
-rw-r--r--drivers/ide/ide-disk.c41
-rw-r--r--drivers/ide/ide-floppy.c42
-rw-r--r--drivers/ide/ide-probe.c51
-rw-r--r--drivers/ide/ide-proc.c54
-rw-r--r--drivers/ide/ide-tape.c51
-rw-r--r--drivers/ide/ide.c307
7 files changed, 192 insertions, 404 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 33a020faeabd..78e3e7b24d7d 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1932,6 +1932,9 @@ static ide_startstop_t cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
1932 1932
1933 /* 1933 /*
1934 * check if dma is safe 1934 * check if dma is safe
1935 *
1936 * NOTE! The "len" and "addr" checks should possibly have
1937 * separate masks.
1935 */ 1938 */
1936 if ((rq->data_len & mask) || (addr & mask)) 1939 if ((rq->data_len & mask) || (addr & mask))
1937 info->dma = 0; 1940 info->dma = 0;
@@ -3255,16 +3258,12 @@ sector_t ide_cdrom_capacity (ide_drive_t *drive)
3255 return capacity * sectors_per_frame; 3258 return capacity * sectors_per_frame;
3256} 3259}
3257 3260
3258static 3261static int ide_cd_remove(struct device *dev)
3259int ide_cdrom_cleanup(ide_drive_t *drive)
3260{ 3262{
3263 ide_drive_t *drive = to_ide_device(dev);
3261 struct cdrom_info *info = drive->driver_data; 3264 struct cdrom_info *info = drive->driver_data;
3262 3265
3263 if (ide_unregister_subdriver(drive)) { 3266 ide_unregister_subdriver(drive, info->driver);
3264 printk(KERN_ERR "%s: %s: failed to ide_unregister_subdriver\n",
3265 __FUNCTION__, drive->name);
3266 return 1;
3267 }
3268 3267
3269 del_gendisk(info->disk); 3268 del_gendisk(info->disk);
3270 3269
@@ -3297,7 +3296,7 @@ static void ide_cd_release(struct kref *kref)
3297 kfree(info); 3296 kfree(info);
3298} 3297}
3299 3298
3300static int ide_cdrom_attach (ide_drive_t *drive); 3299static int ide_cd_probe(struct device *);
3301 3300
3302#ifdef CONFIG_PROC_FS 3301#ifdef CONFIG_PROC_FS
3303static int proc_idecd_read_capacity 3302static int proc_idecd_read_capacity
@@ -3320,19 +3319,20 @@ static ide_proc_entry_t idecd_proc[] = {
3320 3319
3321static ide_driver_t ide_cdrom_driver = { 3320static ide_driver_t ide_cdrom_driver = {
3322 .owner = THIS_MODULE, 3321 .owner = THIS_MODULE,
3323 .name = "ide-cdrom", 3322 .gen_driver = {
3323 .name = "ide-cdrom",
3324 .bus = &ide_bus_type,
3325 .probe = ide_cd_probe,
3326 .remove = ide_cd_remove,
3327 },
3324 .version = IDECD_VERSION, 3328 .version = IDECD_VERSION,
3325 .media = ide_cdrom, 3329 .media = ide_cdrom,
3326 .busy = 0,
3327 .supports_dsc_overlap = 1, 3330 .supports_dsc_overlap = 1,
3328 .cleanup = ide_cdrom_cleanup,
3329 .do_request = ide_do_rw_cdrom, 3331 .do_request = ide_do_rw_cdrom,
3330 .end_request = ide_end_request, 3332 .end_request = ide_end_request,
3331 .error = __ide_error, 3333 .error = __ide_error,
3332 .abort = __ide_abort, 3334 .abort = __ide_abort,
3333 .proc = idecd_proc, 3335 .proc = idecd_proc,
3334 .attach = ide_cdrom_attach,
3335 .drives = LIST_HEAD_INIT(ide_cdrom_driver.drives),
3336}; 3336};
3337 3337
3338static int idecd_open(struct inode * inode, struct file * file) 3338static int idecd_open(struct inode * inode, struct file * file)
@@ -3418,8 +3418,9 @@ static char *ignore = NULL;
3418module_param(ignore, charp, 0400); 3418module_param(ignore, charp, 0400);
3419MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); 3419MODULE_DESCRIPTION("ATAPI CD-ROM Driver");
3420 3420
3421static int ide_cdrom_attach (ide_drive_t *drive) 3421static int ide_cd_probe(struct device *dev)
3422{ 3422{
3423 ide_drive_t *drive = to_ide_device(dev);
3423 struct cdrom_info *info; 3424 struct cdrom_info *info;
3424 struct gendisk *g; 3425 struct gendisk *g;
3425 struct request_sense sense; 3426 struct request_sense sense;
@@ -3453,11 +3454,8 @@ static int ide_cdrom_attach (ide_drive_t *drive)
3453 3454
3454 ide_init_disk(g, drive); 3455 ide_init_disk(g, drive);
3455 3456
3456 if (ide_register_subdriver(drive, &ide_cdrom_driver)) { 3457 ide_register_subdriver(drive, &ide_cdrom_driver);
3457 printk(KERN_ERR "%s: Failed to register the driver with ide.c\n", 3458
3458 drive->name);
3459 goto out_put_disk;
3460 }
3461 memset(info, 0, sizeof (struct cdrom_info)); 3459 memset(info, 0, sizeof (struct cdrom_info));
3462 3460
3463 kref_init(&info->kref); 3461 kref_init(&info->kref);
@@ -3470,7 +3468,6 @@ static int ide_cdrom_attach (ide_drive_t *drive)
3470 3468
3471 drive->driver_data = info; 3469 drive->driver_data = info;
3472 3470
3473 DRIVER(drive)->busy++;
3474 g->minors = 1; 3471 g->minors = 1;
3475 snprintf(g->devfs_name, sizeof(g->devfs_name), 3472 snprintf(g->devfs_name, sizeof(g->devfs_name),
3476 "%s/cd", drive->devfs_name); 3473 "%s/cd", drive->devfs_name);
@@ -3478,8 +3475,7 @@ static int ide_cdrom_attach (ide_drive_t *drive)
3478 g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; 3475 g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
3479 if (ide_cdrom_setup(drive)) { 3476 if (ide_cdrom_setup(drive)) {
3480 struct cdrom_device_info *devinfo = &info->devinfo; 3477 struct cdrom_device_info *devinfo = &info->devinfo;
3481 DRIVER(drive)->busy--; 3478 ide_unregister_subdriver(drive, &ide_cdrom_driver);
3482 ide_unregister_subdriver(drive);
3483 if (info->buffer != NULL) 3479 if (info->buffer != NULL)
3484 kfree(info->buffer); 3480 kfree(info->buffer);
3485 if (info->toc != NULL) 3481 if (info->toc != NULL)
@@ -3492,7 +3488,6 @@ static int ide_cdrom_attach (ide_drive_t *drive)
3492 drive->driver_data = NULL; 3488 drive->driver_data = NULL;
3493 goto failed; 3489 goto failed;
3494 } 3490 }
3495 DRIVER(drive)->busy--;
3496 3491
3497 cdrom_read_toc(drive, &sense); 3492 cdrom_read_toc(drive, &sense);
3498 g->fops = &idecd_ops; 3493 g->fops = &idecd_ops;
@@ -3500,23 +3495,20 @@ static int ide_cdrom_attach (ide_drive_t *drive)
3500 add_disk(g); 3495 add_disk(g);
3501 return 0; 3496 return 0;
3502 3497
3503out_put_disk:
3504 put_disk(g);
3505out_free_cd: 3498out_free_cd:
3506 kfree(info); 3499 kfree(info);
3507failed: 3500failed:
3508 return 1; 3501 return -ENODEV;
3509} 3502}
3510 3503
3511static void __exit ide_cdrom_exit(void) 3504static void __exit ide_cdrom_exit(void)
3512{ 3505{
3513 ide_unregister_driver(&ide_cdrom_driver); 3506 driver_unregister(&ide_cdrom_driver.gen_driver);
3514} 3507}
3515 3508
3516static int ide_cdrom_init(void) 3509static int ide_cdrom_init(void)
3517{ 3510{
3518 ide_register_driver(&ide_cdrom_driver); 3511 return driver_register(&ide_cdrom_driver.gen_driver);
3519 return 0;
3520} 3512}
3521 3513
3522module_init(ide_cdrom_init); 3514module_init(ide_cdrom_init);
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 5d54f7756100..3302cd8eab4c 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -1024,14 +1024,16 @@ static void ide_cacheflush_p(ide_drive_t *drive)
1024 printk(KERN_INFO "%s: wcache flush failed!\n", drive->name); 1024 printk(KERN_INFO "%s: wcache flush failed!\n", drive->name);
1025} 1025}
1026 1026
1027static int idedisk_cleanup (ide_drive_t *drive) 1027static int ide_disk_remove(struct device *dev)
1028{ 1028{
1029 ide_drive_t *drive = to_ide_device(dev);
1029 struct ide_disk_obj *idkp = drive->driver_data; 1030 struct ide_disk_obj *idkp = drive->driver_data;
1030 struct gendisk *g = idkp->disk; 1031 struct gendisk *g = idkp->disk;
1031 1032
1032 ide_cacheflush_p(drive); 1033 ide_cacheflush_p(drive);
1033 if (ide_unregister_subdriver(drive)) 1034
1034 return 1; 1035 ide_unregister_subdriver(drive, idkp->driver);
1036
1035 del_gendisk(g); 1037 del_gendisk(g);
1036 1038
1037 ide_disk_put(idkp); 1039 ide_disk_put(idkp);
@@ -1052,7 +1054,7 @@ static void ide_disk_release(struct kref *kref)
1052 kfree(idkp); 1054 kfree(idkp);
1053} 1055}
1054 1056
1055static int idedisk_attach(ide_drive_t *drive); 1057static int ide_disk_probe(struct device *dev);
1056 1058
1057static void ide_device_shutdown(struct device *dev) 1059static void ide_device_shutdown(struct device *dev)
1058{ 1060{
@@ -1082,27 +1084,23 @@ static void ide_device_shutdown(struct device *dev)
1082 dev->bus->suspend(dev, PMSG_SUSPEND); 1084 dev->bus->suspend(dev, PMSG_SUSPEND);
1083} 1085}
1084 1086
1085/*
1086 * IDE subdriver functions, registered with ide.c
1087 */
1088static ide_driver_t idedisk_driver = { 1087static ide_driver_t idedisk_driver = {
1089 .owner = THIS_MODULE, 1088 .owner = THIS_MODULE,
1090 .gen_driver = { 1089 .gen_driver = {
1090 .name = "ide-disk",
1091 .bus = &ide_bus_type,
1092 .probe = ide_disk_probe,
1093 .remove = ide_disk_remove,
1091 .shutdown = ide_device_shutdown, 1094 .shutdown = ide_device_shutdown,
1092 }, 1095 },
1093 .name = "ide-disk",
1094 .version = IDEDISK_VERSION, 1096 .version = IDEDISK_VERSION,
1095 .media = ide_disk, 1097 .media = ide_disk,
1096 .busy = 0,
1097 .supports_dsc_overlap = 0, 1098 .supports_dsc_overlap = 0,
1098 .cleanup = idedisk_cleanup,
1099 .do_request = ide_do_rw_disk, 1099 .do_request = ide_do_rw_disk,
1100 .end_request = ide_end_request, 1100 .end_request = ide_end_request,
1101 .error = __ide_error, 1101 .error = __ide_error,
1102 .abort = __ide_abort, 1102 .abort = __ide_abort,
1103 .proc = idedisk_proc, 1103 .proc = idedisk_proc,
1104 .attach = idedisk_attach,
1105 .drives = LIST_HEAD_INIT(idedisk_driver.drives),
1106}; 1104};
1107 1105
1108static int idedisk_open(struct inode *inode, struct file *filp) 1106static int idedisk_open(struct inode *inode, struct file *filp)
@@ -1199,8 +1197,9 @@ static struct block_device_operations idedisk_ops = {
1199 1197
1200MODULE_DESCRIPTION("ATA DISK Driver"); 1198MODULE_DESCRIPTION("ATA DISK Driver");
1201 1199
1202static int idedisk_attach(ide_drive_t *drive) 1200static int ide_disk_probe(struct device *dev)
1203{ 1201{
1202 ide_drive_t *drive = to_ide_device(dev);
1204 struct ide_disk_obj *idkp; 1203 struct ide_disk_obj *idkp;
1205 struct gendisk *g; 1204 struct gendisk *g;
1206 1205
@@ -1222,10 +1221,7 @@ static int idedisk_attach(ide_drive_t *drive)
1222 1221
1223 ide_init_disk(g, drive); 1222 ide_init_disk(g, drive);
1224 1223
1225 if (ide_register_subdriver(drive, &idedisk_driver)) { 1224 ide_register_subdriver(drive, &idedisk_driver);
1226 printk (KERN_ERR "ide-disk: %s: Failed to register the driver with ide.c\n", drive->name);
1227 goto out_put_disk;
1228 }
1229 1225
1230 memset(idkp, 0, sizeof(*idkp)); 1226 memset(idkp, 0, sizeof(*idkp));
1231 1227
@@ -1239,7 +1235,6 @@ static int idedisk_attach(ide_drive_t *drive)
1239 1235
1240 drive->driver_data = idkp; 1236 drive->driver_data = idkp;
1241 1237
1242 DRIVER(drive)->busy++;
1243 idedisk_setup(drive); 1238 idedisk_setup(drive);
1244 if ((!drive->head || drive->head > 16) && !drive->select.b.lba) { 1239 if ((!drive->head || drive->head > 16) && !drive->select.b.lba) {
1245 printk(KERN_ERR "%s: INVALID GEOMETRY: %d PHYSICAL HEADS?\n", 1240 printk(KERN_ERR "%s: INVALID GEOMETRY: %d PHYSICAL HEADS?\n",
@@ -1247,7 +1242,7 @@ static int idedisk_attach(ide_drive_t *drive)
1247 drive->attach = 0; 1242 drive->attach = 0;
1248 } else 1243 } else
1249 drive->attach = 1; 1244 drive->attach = 1;
1250 DRIVER(drive)->busy--; 1245
1251 g->minors = 1 << PARTN_BITS; 1246 g->minors = 1 << PARTN_BITS;
1252 strcpy(g->devfs_name, drive->devfs_name); 1247 strcpy(g->devfs_name, drive->devfs_name);
1253 g->driverfs_dev = &drive->gendev; 1248 g->driverfs_dev = &drive->gendev;
@@ -1257,22 +1252,20 @@ static int idedisk_attach(ide_drive_t *drive)
1257 add_disk(g); 1252 add_disk(g);
1258 return 0; 1253 return 0;
1259 1254
1260out_put_disk:
1261 put_disk(g);
1262out_free_idkp: 1255out_free_idkp:
1263 kfree(idkp); 1256 kfree(idkp);
1264failed: 1257failed:
1265 return 1; 1258 return -ENODEV;
1266} 1259}
1267 1260
1268static void __exit idedisk_exit (void) 1261static void __exit idedisk_exit (void)
1269{ 1262{
1270 ide_unregister_driver(&idedisk_driver); 1263 driver_unregister(&idedisk_driver.gen_driver);
1271} 1264}
1272 1265
1273static int idedisk_init (void) 1266static int idedisk_init (void)
1274{ 1267{
1275 return ide_register_driver(&idedisk_driver); 1268 return driver_register(&idedisk_driver.gen_driver);
1276} 1269}
1277 1270
1278module_init(idedisk_init); 1271module_init(idedisk_init);
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 36c0b74a4e45..c949e98df4b6 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -1865,13 +1865,13 @@ static void idefloppy_setup (ide_drive_t *drive, idefloppy_floppy_t *floppy)
1865 idefloppy_add_settings(drive); 1865 idefloppy_add_settings(drive);
1866} 1866}
1867 1867
1868static int idefloppy_cleanup (ide_drive_t *drive) 1868static int ide_floppy_remove(struct device *dev)
1869{ 1869{
1870 ide_drive_t *drive = to_ide_device(dev);
1870 idefloppy_floppy_t *floppy = drive->driver_data; 1871 idefloppy_floppy_t *floppy = drive->driver_data;
1871 struct gendisk *g = floppy->disk; 1872 struct gendisk *g = floppy->disk;
1872 1873
1873 if (ide_unregister_subdriver(drive)) 1874 ide_unregister_subdriver(drive, floppy->driver);
1874 return 1;
1875 1875
1876 del_gendisk(g); 1876 del_gendisk(g);
1877 1877
@@ -1916,26 +1916,24 @@ static ide_proc_entry_t idefloppy_proc[] = {
1916 1916
1917#endif /* CONFIG_PROC_FS */ 1917#endif /* CONFIG_PROC_FS */
1918 1918
1919static int idefloppy_attach(ide_drive_t *drive); 1919static int ide_floppy_probe(struct device *);
1920 1920
1921/*
1922 * IDE subdriver functions, registered with ide.c
1923 */
1924static ide_driver_t idefloppy_driver = { 1921static ide_driver_t idefloppy_driver = {
1925 .owner = THIS_MODULE, 1922 .owner = THIS_MODULE,
1926 .name = "ide-floppy", 1923 .gen_driver = {
1924 .name = "ide-floppy",
1925 .bus = &ide_bus_type,
1926 .probe = ide_floppy_probe,
1927 .remove = ide_floppy_remove,
1928 },
1927 .version = IDEFLOPPY_VERSION, 1929 .version = IDEFLOPPY_VERSION,
1928 .media = ide_floppy, 1930 .media = ide_floppy,
1929 .busy = 0,
1930 .supports_dsc_overlap = 0, 1931 .supports_dsc_overlap = 0,
1931 .cleanup = idefloppy_cleanup,
1932 .do_request = idefloppy_do_request, 1932 .do_request = idefloppy_do_request,
1933 .end_request = idefloppy_do_end_request, 1933 .end_request = idefloppy_do_end_request,
1934 .error = __ide_error, 1934 .error = __ide_error,
1935 .abort = __ide_abort, 1935 .abort = __ide_abort,
1936 .proc = idefloppy_proc, 1936 .proc = idefloppy_proc,
1937 .attach = idefloppy_attach,
1938 .drives = LIST_HEAD_INIT(idefloppy_driver.drives),
1939}; 1937};
1940 1938
1941static int idefloppy_open(struct inode *inode, struct file *filp) 1939static int idefloppy_open(struct inode *inode, struct file *filp)
@@ -2122,8 +2120,9 @@ static struct block_device_operations idefloppy_ops = {
2122 .revalidate_disk= idefloppy_revalidate_disk 2120 .revalidate_disk= idefloppy_revalidate_disk
2123}; 2121};
2124 2122
2125static int idefloppy_attach (ide_drive_t *drive) 2123static int ide_floppy_probe(struct device *dev)
2126{ 2124{
2125 ide_drive_t *drive = to_ide_device(dev);
2127 idefloppy_floppy_t *floppy; 2126 idefloppy_floppy_t *floppy;
2128 struct gendisk *g; 2127 struct gendisk *g;
2129 2128
@@ -2152,10 +2151,7 @@ static int idefloppy_attach (ide_drive_t *drive)
2152 2151
2153 ide_init_disk(g, drive); 2152 ide_init_disk(g, drive);
2154 2153
2155 if (ide_register_subdriver(drive, &idefloppy_driver)) { 2154 ide_register_subdriver(drive, &idefloppy_driver);
2156 printk (KERN_ERR "ide-floppy: %s: Failed to register the driver with ide.c\n", drive->name);
2157 goto out_put_disk;
2158 }
2159 2155
2160 memset(floppy, 0, sizeof(*floppy)); 2156 memset(floppy, 0, sizeof(*floppy));
2161 2157
@@ -2169,9 +2165,8 @@ static int idefloppy_attach (ide_drive_t *drive)
2169 2165
2170 drive->driver_data = floppy; 2166 drive->driver_data = floppy;
2171 2167
2172 DRIVER(drive)->busy++;
2173 idefloppy_setup (drive, floppy); 2168 idefloppy_setup (drive, floppy);
2174 DRIVER(drive)->busy--; 2169
2175 g->minors = 1 << PARTN_BITS; 2170 g->minors = 1 << PARTN_BITS;
2176 g->driverfs_dev = &drive->gendev; 2171 g->driverfs_dev = &drive->gendev;
2177 strcpy(g->devfs_name, drive->devfs_name); 2172 strcpy(g->devfs_name, drive->devfs_name);
@@ -2181,19 +2176,17 @@ static int idefloppy_attach (ide_drive_t *drive)
2181 add_disk(g); 2176 add_disk(g);
2182 return 0; 2177 return 0;
2183 2178
2184out_put_disk:
2185 put_disk(g);
2186out_free_floppy: 2179out_free_floppy:
2187 kfree(floppy); 2180 kfree(floppy);
2188failed: 2181failed:
2189 return 1; 2182 return -ENODEV;
2190} 2183}
2191 2184
2192MODULE_DESCRIPTION("ATAPI FLOPPY Driver"); 2185MODULE_DESCRIPTION("ATAPI FLOPPY Driver");
2193 2186
2194static void __exit idefloppy_exit (void) 2187static void __exit idefloppy_exit (void)
2195{ 2188{
2196 ide_unregister_driver(&idefloppy_driver); 2189 driver_unregister(&idefloppy_driver.gen_driver);
2197} 2190}
2198 2191
2199/* 2192/*
@@ -2202,8 +2195,7 @@ static void __exit idefloppy_exit (void)
2202static int idefloppy_init (void) 2195static int idefloppy_init (void)
2203{ 2196{
2204 printk("ide-floppy driver " IDEFLOPPY_VERSION "\n"); 2197 printk("ide-floppy driver " IDEFLOPPY_VERSION "\n");
2205 ide_register_driver(&idefloppy_driver); 2198 return driver_register(&idefloppy_driver.gen_driver);
2206 return 0;
2207} 2199}
2208 2200
2209module_init(idefloppy_init); 2201module_init(idefloppy_init);
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 554473a95cf7..5d876f53c697 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -47,6 +47,7 @@
47#include <linux/slab.h> 47#include <linux/slab.h>
48#include <linux/delay.h> 48#include <linux/delay.h>
49#include <linux/ide.h> 49#include <linux/ide.h>
50#include <linux/devfs_fs_kernel.h>
50#include <linux/spinlock.h> 51#include <linux/spinlock.h>
51#include <linux/kmod.h> 52#include <linux/kmod.h>
52#include <linux/pci.h> 53#include <linux/pci.h>
@@ -696,13 +697,13 @@ static int wait_hwif_ready(ide_hwif_t *hwif)
696 SELECT_DRIVE(&hwif->drives[0]); 697 SELECT_DRIVE(&hwif->drives[0]);
697 hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]); 698 hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
698 mdelay(2); 699 mdelay(2);
699 rc = ide_wait_not_busy(hwif, 10000); 700 rc = ide_wait_not_busy(hwif, 35000);
700 if (rc) 701 if (rc)
701 return rc; 702 return rc;
702 SELECT_DRIVE(&hwif->drives[1]); 703 SELECT_DRIVE(&hwif->drives[1]);
703 hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]); 704 hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
704 mdelay(2); 705 mdelay(2);
705 rc = ide_wait_not_busy(hwif, 10000); 706 rc = ide_wait_not_busy(hwif, 35000);
706 707
707 /* Exit function with master reselected (let's be sane) */ 708 /* Exit function with master reselected (let's be sane) */
708 SELECT_DRIVE(&hwif->drives[0]); 709 SELECT_DRIVE(&hwif->drives[0]);
@@ -918,7 +919,7 @@ int probe_hwif_init_with_fixup(ide_hwif_t *hwif, void (*fixup)(ide_hwif_t *hwif)
918 want them on default or a new "empty" class 919 want them on default or a new "empty" class
919 for hotplug reprobing ? */ 920 for hotplug reprobing ? */
920 if (drive->present) { 921 if (drive->present) {
921 ata_attach(drive); 922 device_register(&drive->gendev);
922 } 923 }
923 } 924 }
924 } 925 }
@@ -1279,10 +1280,51 @@ void ide_init_disk(struct gendisk *disk, ide_drive_t *drive)
1279 1280
1280EXPORT_SYMBOL_GPL(ide_init_disk); 1281EXPORT_SYMBOL_GPL(ide_init_disk);
1281 1282
1283static void ide_remove_drive_from_hwgroup(ide_drive_t *drive)
1284{
1285 ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
1286
1287 if (drive == drive->next) {
1288 /* special case: last drive from hwgroup. */
1289 BUG_ON(hwgroup->drive != drive);
1290 hwgroup->drive = NULL;
1291 } else {
1292 ide_drive_t *walk;
1293
1294 walk = hwgroup->drive;
1295 while (walk->next != drive)
1296 walk = walk->next;
1297 walk->next = drive->next;
1298 if (hwgroup->drive == drive) {
1299 hwgroup->drive = drive->next;
1300 hwgroup->hwif = hwgroup->drive->hwif;
1301 }
1302 }
1303 BUG_ON(hwgroup->drive == drive);
1304}
1305
1282static void drive_release_dev (struct device *dev) 1306static void drive_release_dev (struct device *dev)
1283{ 1307{
1284 ide_drive_t *drive = container_of(dev, ide_drive_t, gendev); 1308 ide_drive_t *drive = container_of(dev, ide_drive_t, gendev);
1285 1309
1310 spin_lock_irq(&ide_lock);
1311 if (drive->devfs_name[0] != '\0') {
1312 devfs_remove(drive->devfs_name);
1313 drive->devfs_name[0] = '\0';
1314 }
1315 ide_remove_drive_from_hwgroup(drive);
1316 if (drive->id != NULL) {
1317 kfree(drive->id);
1318 drive->id = NULL;
1319 }
1320 drive->present = 0;
1321 /* Messed up locking ... */
1322 spin_unlock_irq(&ide_lock);
1323 blk_cleanup_queue(drive->queue);
1324 spin_lock_irq(&ide_lock);
1325 drive->queue = NULL;
1326 spin_unlock_irq(&ide_lock);
1327
1286 up(&drive->gendev_rel_sem); 1328 up(&drive->gendev_rel_sem);
1287} 1329}
1288 1330
@@ -1306,7 +1348,6 @@ static void init_gendisk (ide_hwif_t *hwif)
1306 drive->gendev.driver_data = drive; 1348 drive->gendev.driver_data = drive;
1307 drive->gendev.release = drive_release_dev; 1349 drive->gendev.release = drive_release_dev;
1308 if (drive->present) { 1350 if (drive->present) {
1309 device_register(&drive->gendev);
1310 sprintf(drive->devfs_name, "ide/host%d/bus%d/target%d/lun%d", 1351 sprintf(drive->devfs_name, "ide/host%d/bus%d/target%d/lun%d",
1311 (hwif->channel && hwif->mate) ? 1352 (hwif->channel && hwif->mate) ?
1312 hwif->mate->index : hwif->index, 1353 hwif->mate->index : hwif->index,
@@ -1412,7 +1453,7 @@ int ideprobe_init (void)
1412 hwif->chipset = ide_generic; 1453 hwif->chipset = ide_generic;
1413 for (unit = 0; unit < MAX_DRIVES; ++unit) 1454 for (unit = 0; unit < MAX_DRIVES; ++unit)
1414 if (hwif->drives[unit].present) 1455 if (hwif->drives[unit].present)
1415 ata_attach(&hwif->drives[unit]); 1456 device_register(&hwif->drives[unit].gendev);
1416 } 1457 }
1417 } 1458 }
1418 return 0; 1459 return 0;
diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
index bdff5ac58053..4063d2c34e3d 100644
--- a/drivers/ide/ide-proc.c
+++ b/drivers/ide/ide-proc.c
@@ -307,17 +307,41 @@ static int proc_ide_read_driver
307 (char *page, char **start, off_t off, int count, int *eof, void *data) 307 (char *page, char **start, off_t off, int count, int *eof, void *data)
308{ 308{
309 ide_drive_t *drive = (ide_drive_t *) data; 309 ide_drive_t *drive = (ide_drive_t *) data;
310 ide_driver_t *driver = drive->driver; 310 struct device *dev = &drive->gendev;
311 ide_driver_t *ide_drv;
311 int len; 312 int len;
312 313
313 if (driver) { 314 down_read(&dev->bus->subsys.rwsem);
315 if (dev->driver) {
316 ide_drv = container_of(dev->driver, ide_driver_t, gen_driver);
314 len = sprintf(page, "%s version %s\n", 317 len = sprintf(page, "%s version %s\n",
315 driver->name, driver->version); 318 dev->driver->name, ide_drv->version);
316 } else 319 } else
317 len = sprintf(page, "ide-default version 0.9.newide\n"); 320 len = sprintf(page, "ide-default version 0.9.newide\n");
321 up_read(&dev->bus->subsys.rwsem);
318 PROC_IDE_READ_RETURN(page,start,off,count,eof,len); 322 PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
319} 323}
320 324
325static int ide_replace_subdriver(ide_drive_t *drive, const char *driver)
326{
327 struct device *dev = &drive->gendev;
328 int ret = 1;
329
330 down_write(&dev->bus->subsys.rwsem);
331 device_release_driver(dev);
332 /* FIXME: device can still be in use by previous driver */
333 strlcpy(drive->driver_req, driver, sizeof(drive->driver_req));
334 device_attach(dev);
335 drive->driver_req[0] = 0;
336 if (dev->driver == NULL)
337 device_attach(dev);
338 if (dev->driver && !strcmp(dev->driver->name, driver))
339 ret = 0;
340 up_write(&dev->bus->subsys.rwsem);
341
342 return ret;
343}
344
321static int proc_ide_write_driver 345static int proc_ide_write_driver
322 (struct file *file, const char __user *buffer, unsigned long count, void *data) 346 (struct file *file, const char __user *buffer, unsigned long count, void *data)
323{ 347{
@@ -488,16 +512,32 @@ void destroy_proc_ide_interface(ide_hwif_t *hwif)
488 } 512 }
489} 513}
490 514
491extern struct seq_operations ide_drivers_op; 515static int proc_print_driver(struct device_driver *drv, void *data)
516{
517 ide_driver_t *ide_drv = container_of(drv, ide_driver_t, gen_driver);
518 struct seq_file *s = data;
519
520 seq_printf(s, "%s version %s\n", drv->name, ide_drv->version);
521
522 return 0;
523}
524
525static int ide_drivers_show(struct seq_file *s, void *p)
526{
527 bus_for_each_drv(&ide_bus_type, NULL, s, proc_print_driver);
528 return 0;
529}
530
492static int ide_drivers_open(struct inode *inode, struct file *file) 531static int ide_drivers_open(struct inode *inode, struct file *file)
493{ 532{
494 return seq_open(file, &ide_drivers_op); 533 return single_open(file, &ide_drivers_show, NULL);
495} 534}
535
496static struct file_operations ide_drivers_operations = { 536static struct file_operations ide_drivers_operations = {
497 .open = ide_drivers_open, 537 .open = ide_drivers_open,
498 .read = seq_read, 538 .read = seq_read,
499 .llseek = seq_lseek, 539 .llseek = seq_lseek,
500 .release = seq_release, 540 .release = single_release,
501}; 541};
502 542
503void proc_ide_create(void) 543void proc_ide_create(void)
@@ -516,6 +556,6 @@ void proc_ide_create(void)
516 556
517void proc_ide_destroy(void) 557void proc_ide_destroy(void)
518{ 558{
519 remove_proc_entry("ide/drivers", proc_ide_root); 559 remove_proc_entry("drivers", proc_ide_root);
520 remove_proc_entry("ide", NULL); 560 remove_proc_entry("ide", NULL);
521} 561}
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 482544854985..5a3dc46008e6 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -4681,21 +4681,12 @@ static void idetape_setup (ide_drive_t *drive, idetape_tape_t *tape, int minor)
4681 idetape_add_settings(drive); 4681 idetape_add_settings(drive);
4682} 4682}
4683 4683
4684static int idetape_cleanup (ide_drive_t *drive) 4684static int ide_tape_remove(struct device *dev)
4685{ 4685{
4686 ide_drive_t *drive = to_ide_device(dev);
4686 idetape_tape_t *tape = drive->driver_data; 4687 idetape_tape_t *tape = drive->driver_data;
4687 unsigned long flags;
4688
4689 spin_lock_irqsave(&ide_lock, flags);
4690 if (test_bit(IDETAPE_BUSY, &tape->flags) || drive->usage ||
4691 tape->first_stage != NULL || tape->merge_stage_size) {
4692 spin_unlock_irqrestore(&ide_lock, flags);
4693 return 1;
4694 }
4695 4688
4696 spin_unlock_irqrestore(&ide_lock, flags); 4689 ide_unregister_subdriver(drive, tape->driver);
4697 DRIVER(drive)->busy = 0;
4698 (void) ide_unregister_subdriver(drive);
4699 4690
4700 ide_unregister_region(tape->disk); 4691 ide_unregister_region(tape->disk);
4701 4692
@@ -4710,6 +4701,8 @@ static void ide_tape_release(struct kref *kref)
4710 ide_drive_t *drive = tape->drive; 4701 ide_drive_t *drive = tape->drive;
4711 struct gendisk *g = tape->disk; 4702 struct gendisk *g = tape->disk;
4712 4703
4704 BUG_ON(tape->first_stage != NULL || tape->merge_stage_size);
4705
4713 drive->dsc_overlap = 0; 4706 drive->dsc_overlap = 0;
4714 drive->driver_data = NULL; 4707 drive->driver_data = NULL;
4715 devfs_remove("%s/mt", drive->devfs_name); 4708 devfs_remove("%s/mt", drive->devfs_name);
@@ -4747,26 +4740,24 @@ static ide_proc_entry_t idetape_proc[] = {
4747 4740
4748#endif 4741#endif
4749 4742
4750static int idetape_attach(ide_drive_t *drive); 4743static int ide_tape_probe(struct device *);
4751 4744
4752/*
4753 * IDE subdriver functions, registered with ide.c
4754 */
4755static ide_driver_t idetape_driver = { 4745static ide_driver_t idetape_driver = {
4756 .owner = THIS_MODULE, 4746 .owner = THIS_MODULE,
4757 .name = "ide-tape", 4747 .gen_driver = {
4748 .name = "ide-tape",
4749 .bus = &ide_bus_type,
4750 .probe = ide_tape_probe,
4751 .remove = ide_tape_remove,
4752 },
4758 .version = IDETAPE_VERSION, 4753 .version = IDETAPE_VERSION,
4759 .media = ide_tape, 4754 .media = ide_tape,
4760 .busy = 1,
4761 .supports_dsc_overlap = 1, 4755 .supports_dsc_overlap = 1,
4762 .cleanup = idetape_cleanup,
4763 .do_request = idetape_do_request, 4756 .do_request = idetape_do_request,
4764 .end_request = idetape_end_request, 4757 .end_request = idetape_end_request,
4765 .error = __ide_error, 4758 .error = __ide_error,
4766 .abort = __ide_abort, 4759 .abort = __ide_abort,
4767 .proc = idetape_proc, 4760 .proc = idetape_proc,
4768 .attach = idetape_attach,
4769 .drives = LIST_HEAD_INIT(idetape_driver.drives),
4770}; 4761};
4771 4762
4772/* 4763/*
@@ -4829,8 +4820,9 @@ static struct block_device_operations idetape_block_ops = {
4829 .ioctl = idetape_ioctl, 4820 .ioctl = idetape_ioctl,
4830}; 4821};
4831 4822
4832static int idetape_attach (ide_drive_t *drive) 4823static int ide_tape_probe(struct device *dev)
4833{ 4824{
4825 ide_drive_t *drive = to_ide_device(dev);
4834 idetape_tape_t *tape; 4826 idetape_tape_t *tape;
4835 struct gendisk *g; 4827 struct gendisk *g;
4836 int minor; 4828 int minor;
@@ -4865,10 +4857,7 @@ static int idetape_attach (ide_drive_t *drive)
4865 4857
4866 ide_init_disk(g, drive); 4858 ide_init_disk(g, drive);
4867 4859
4868 if (ide_register_subdriver(drive, &idetape_driver)) { 4860 ide_register_subdriver(drive, &idetape_driver);
4869 printk(KERN_ERR "ide-tape: %s: Failed to register the driver with ide.c\n", drive->name);
4870 goto out_put_disk;
4871 }
4872 4861
4873 memset(tape, 0, sizeof(*tape)); 4862 memset(tape, 0, sizeof(*tape));
4874 4863
@@ -4902,12 +4891,11 @@ static int idetape_attach (ide_drive_t *drive)
4902 ide_register_region(g); 4891 ide_register_region(g);
4903 4892
4904 return 0; 4893 return 0;
4905out_put_disk: 4894
4906 put_disk(g);
4907out_free_tape: 4895out_free_tape:
4908 kfree(tape); 4896 kfree(tape);
4909failed: 4897failed:
4910 return 1; 4898 return -ENODEV;
4911} 4899}
4912 4900
4913MODULE_DESCRIPTION("ATAPI Streaming TAPE Driver"); 4901MODULE_DESCRIPTION("ATAPI Streaming TAPE Driver");
@@ -4915,7 +4903,7 @@ MODULE_LICENSE("GPL");
4915 4903
4916static void __exit idetape_exit (void) 4904static void __exit idetape_exit (void)
4917{ 4905{
4918 ide_unregister_driver(&idetape_driver); 4906 driver_unregister(&idetape_driver.gen_driver);
4919 unregister_chrdev(IDETAPE_MAJOR, "ht"); 4907 unregister_chrdev(IDETAPE_MAJOR, "ht");
4920} 4908}
4921 4909
@@ -4928,8 +4916,7 @@ static int idetape_init (void)
4928 printk(KERN_ERR "ide-tape: Failed to register character device interface\n"); 4916 printk(KERN_ERR "ide-tape: Failed to register character device interface\n");
4929 return -EBUSY; 4917 return -EBUSY;
4930 } 4918 }
4931 ide_register_driver(&idetape_driver); 4919 return driver_register(&idetape_driver.gen_driver);
4932 return 0;
4933} 4920}
4934 4921
4935module_init(idetape_init); 4922module_init(idetape_init);
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 973dec799b5c..dae1bd5b8c3e 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -196,8 +196,6 @@ ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */
196 196
197EXPORT_SYMBOL(ide_hwifs); 197EXPORT_SYMBOL(ide_hwifs);
198 198
199static struct list_head ide_drives = LIST_HEAD_INIT(ide_drives);
200
201/* 199/*
202 * Do not even *think* about calling this! 200 * Do not even *think* about calling this!
203 */ 201 */
@@ -358,54 +356,6 @@ static int ide_system_bus_speed(void)
358 return system_bus_speed; 356 return system_bus_speed;
359} 357}
360 358
361/*
362 * drives_lock protects the list of drives, drivers_lock the
363 * list of drivers. Currently nobody takes both at once.
364 */
365
366static DEFINE_SPINLOCK(drives_lock);
367static DEFINE_SPINLOCK(drivers_lock);
368static LIST_HEAD(drivers);
369
370/* Iterator for the driver list. */
371
372static void *m_start(struct seq_file *m, loff_t *pos)
373{
374 struct list_head *p;
375 loff_t l = *pos;
376 spin_lock(&drivers_lock);
377 list_for_each(p, &drivers)
378 if (!l--)
379 return list_entry(p, ide_driver_t, drivers);
380 return NULL;
381}
382
383static void *m_next(struct seq_file *m, void *v, loff_t *pos)
384{
385 struct list_head *p = ((ide_driver_t *)v)->drivers.next;
386 (*pos)++;
387 return p==&drivers ? NULL : list_entry(p, ide_driver_t, drivers);
388}
389
390static void m_stop(struct seq_file *m, void *v)
391{
392 spin_unlock(&drivers_lock);
393}
394
395static int show_driver(struct seq_file *m, void *v)
396{
397 ide_driver_t *driver = v;
398 seq_printf(m, "%s version %s\n", driver->name, driver->version);
399 return 0;
400}
401
402struct seq_operations ide_drivers_op = {
403 .start = m_start,
404 .next = m_next,
405 .stop = m_stop,
406 .show = show_driver
407};
408
409#ifdef CONFIG_PROC_FS 359#ifdef CONFIG_PROC_FS
410struct proc_dir_entry *proc_ide_root; 360struct proc_dir_entry *proc_ide_root;
411#endif 361#endif
@@ -630,7 +580,7 @@ void ide_unregister(unsigned int index)
630 ide_hwif_t *hwif, *g; 580 ide_hwif_t *hwif, *g;
631 static ide_hwif_t tmp_hwif; /* protected by ide_cfg_sem */ 581 static ide_hwif_t tmp_hwif; /* protected by ide_cfg_sem */
632 ide_hwgroup_t *hwgroup; 582 ide_hwgroup_t *hwgroup;
633 int irq_count = 0, unit, i; 583 int irq_count = 0, unit;
634 584
635 BUG_ON(index >= MAX_HWIFS); 585 BUG_ON(index >= MAX_HWIFS);
636 586
@@ -643,23 +593,22 @@ void ide_unregister(unsigned int index)
643 goto abort; 593 goto abort;
644 for (unit = 0; unit < MAX_DRIVES; ++unit) { 594 for (unit = 0; unit < MAX_DRIVES; ++unit) {
645 drive = &hwif->drives[unit]; 595 drive = &hwif->drives[unit];
646 if (!drive->present) 596 if (!drive->present) {
597 if (drive->devfs_name[0] != '\0') {
598 devfs_remove(drive->devfs_name);
599 drive->devfs_name[0] = '\0';
600 }
647 continue; 601 continue;
648 if (drive->usage || DRIVER(drive)->busy) 602 }
649 goto abort; 603 spin_unlock_irq(&ide_lock);
650 drive->dead = 1; 604 device_unregister(&drive->gendev);
605 down(&drive->gendev_rel_sem);
606 spin_lock_irq(&ide_lock);
651 } 607 }
652 hwif->present = 0; 608 hwif->present = 0;
653 609
654 spin_unlock_irq(&ide_lock); 610 spin_unlock_irq(&ide_lock);
655 611
656 for (unit = 0; unit < MAX_DRIVES; ++unit) {
657 drive = &hwif->drives[unit];
658 if (!drive->present)
659 continue;
660 DRIVER(drive)->cleanup(drive);
661 }
662
663 destroy_proc_ide_interface(hwif); 612 destroy_proc_ide_interface(hwif);
664 613
665 hwgroup = hwif->hwgroup; 614 hwgroup = hwif->hwgroup;
@@ -687,44 +636,6 @@ void ide_unregister(unsigned int index)
687 * Remove us from the hwgroup, and free 636 * Remove us from the hwgroup, and free
688 * the hwgroup if we were the only member 637 * the hwgroup if we were the only member
689 */ 638 */
690 for (i = 0; i < MAX_DRIVES; ++i) {
691 drive = &hwif->drives[i];
692 if (drive->devfs_name[0] != '\0') {
693 devfs_remove(drive->devfs_name);
694 drive->devfs_name[0] = '\0';
695 }
696 if (!drive->present)
697 continue;
698 if (drive == drive->next) {
699 /* special case: last drive from hwgroup. */
700 BUG_ON(hwgroup->drive != drive);
701 hwgroup->drive = NULL;
702 } else {
703 ide_drive_t *walk;
704
705 walk = hwgroup->drive;
706 while (walk->next != drive)
707 walk = walk->next;
708 walk->next = drive->next;
709 if (hwgroup->drive == drive) {
710 hwgroup->drive = drive->next;
711 hwgroup->hwif = HWIF(hwgroup->drive);
712 }
713 }
714 BUG_ON(hwgroup->drive == drive);
715 if (drive->id != NULL) {
716 kfree(drive->id);
717 drive->id = NULL;
718 }
719 drive->present = 0;
720 /* Messed up locking ... */
721 spin_unlock_irq(&ide_lock);
722 blk_cleanup_queue(drive->queue);
723 device_unregister(&drive->gendev);
724 down(&drive->gendev_rel_sem);
725 spin_lock_irq(&ide_lock);
726 drive->queue = NULL;
727 }
728 if (hwif->next == hwif) { 639 if (hwif->next == hwif) {
729 BUG_ON(hwgroup->hwif != hwif); 640 BUG_ON(hwgroup->hwif != hwif);
730 kfree(hwgroup); 641 kfree(hwgroup);
@@ -1304,73 +1215,6 @@ int system_bus_clock (void)
1304 1215
1305EXPORT_SYMBOL(system_bus_clock); 1216EXPORT_SYMBOL(system_bus_clock);
1306 1217
1307/*
1308 * Locking is badly broken here - since way back. That sucker is
1309 * root-only, but that's not an excuse... The real question is what
1310 * exclusion rules do we want here.
1311 */
1312int ide_replace_subdriver (ide_drive_t *drive, const char *driver)
1313{
1314 if (!drive->present || drive->usage || drive->dead)
1315 goto abort;
1316 if (DRIVER(drive)->cleanup(drive))
1317 goto abort;
1318 strlcpy(drive->driver_req, driver, sizeof(drive->driver_req));
1319 if (ata_attach(drive)) {
1320 spin_lock(&drives_lock);
1321 list_del_init(&drive->list);
1322 spin_unlock(&drives_lock);
1323 drive->driver_req[0] = 0;
1324 ata_attach(drive);
1325 } else {
1326 drive->driver_req[0] = 0;
1327 }
1328 if (drive->driver && !strcmp(drive->driver->name, driver))
1329 return 0;
1330abort:
1331 return 1;
1332}
1333
1334/**
1335 * ata_attach - attach an ATA/ATAPI device
1336 * @drive: drive to attach
1337 *
1338 * Takes a drive that is as yet not assigned to any midlayer IDE
1339 * driver (or is assigned to the default driver) and figures out
1340 * which driver would like to own it. If nobody claims the drive
1341 * then it is automatically attached to the default driver used for
1342 * unclaimed objects.
1343 *
1344 * A return of zero indicates attachment to a driver, of one
1345 * attachment to the default driver.
1346 *
1347 * Takes drivers_lock.
1348 */
1349
1350int ata_attach(ide_drive_t *drive)
1351{
1352 struct list_head *p;
1353 spin_lock(&drivers_lock);
1354 list_for_each(p, &drivers) {
1355 ide_driver_t *driver = list_entry(p, ide_driver_t, drivers);
1356 if (!try_module_get(driver->owner))
1357 continue;
1358 spin_unlock(&drivers_lock);
1359 if (driver->attach(drive) == 0) {
1360 module_put(driver->owner);
1361 drive->gendev.driver = &driver->gen_driver;
1362 return 0;
1363 }
1364 spin_lock(&drivers_lock);
1365 module_put(driver->owner);
1366 }
1367 drive->gendev.driver = NULL;
1368 spin_unlock(&drivers_lock);
1369 if (ide_register_subdriver(drive, NULL))
1370 panic("ide: default attach failed");
1371 return 1;
1372}
1373
1374static int generic_ide_suspend(struct device *dev, pm_message_t state) 1218static int generic_ide_suspend(struct device *dev, pm_message_t state)
1375{ 1219{
1376 ide_drive_t *drive = dev->driver_data; 1220 ide_drive_t *drive = dev->driver_data;
@@ -2013,27 +1857,11 @@ static void __init probe_for_hwifs (void)
2013#endif 1857#endif
2014} 1858}
2015 1859
2016int ide_register_subdriver(ide_drive_t *drive, ide_driver_t *driver) 1860void ide_register_subdriver(ide_drive_t *drive, ide_driver_t *driver)
2017{ 1861{
2018 unsigned long flags;
2019
2020 spin_lock_irqsave(&ide_lock, flags);
2021 if (!drive->present || drive->driver != NULL ||
2022 drive->usage || drive->dead) {
2023 spin_unlock_irqrestore(&ide_lock, flags);
2024 return 1;
2025 }
2026 drive->driver = driver;
2027 spin_unlock_irqrestore(&ide_lock, flags);
2028 spin_lock(&drives_lock);
2029 list_add_tail(&drive->list, driver ? &driver->drives : &ide_drives);
2030 spin_unlock(&drives_lock);
2031// printk(KERN_INFO "%s: attached %s driver.\n", drive->name, driver->name);
2032#ifdef CONFIG_PROC_FS 1862#ifdef CONFIG_PROC_FS
2033 if (driver) 1863 ide_add_proc_entries(drive->proc, driver->proc, drive);
2034 ide_add_proc_entries(drive->proc, driver->proc, drive);
2035#endif 1864#endif
2036 return 0;
2037} 1865}
2038 1866
2039EXPORT_SYMBOL(ide_register_subdriver); 1867EXPORT_SYMBOL(ide_register_subdriver);
@@ -2041,136 +1869,51 @@ EXPORT_SYMBOL(ide_register_subdriver);
2041/** 1869/**
2042 * ide_unregister_subdriver - disconnect drive from driver 1870 * ide_unregister_subdriver - disconnect drive from driver
2043 * @drive: drive to unplug 1871 * @drive: drive to unplug
1872 * @driver: driver
2044 * 1873 *
2045 * Disconnect a drive from the driver it was attached to and then 1874 * Disconnect a drive from the driver it was attached to and then
2046 * clean up the various proc files and other objects attached to it. 1875 * clean up the various proc files and other objects attached to it.
2047 * 1876 *
2048 * Takes ide_setting_sem, ide_lock and drives_lock. 1877 * Takes ide_setting_sem and ide_lock.
2049 * Caller must hold none of the locks. 1878 * Caller must hold none of the locks.
2050 *
2051 * No locking versus subdriver unload because we are moving to the
2052 * default driver anyway. Wants double checking.
2053 */ 1879 */
2054 1880
2055int ide_unregister_subdriver (ide_drive_t *drive) 1881void ide_unregister_subdriver(ide_drive_t *drive, ide_driver_t *driver)
2056{ 1882{
2057 unsigned long flags; 1883 unsigned long flags;
2058 1884
2059 down(&ide_setting_sem); 1885 down(&ide_setting_sem);
2060 spin_lock_irqsave(&ide_lock, flags); 1886 spin_lock_irqsave(&ide_lock, flags);
2061 if (drive->usage || drive->driver == NULL || DRIVER(drive)->busy) {
2062 spin_unlock_irqrestore(&ide_lock, flags);
2063 up(&ide_setting_sem);
2064 return 1;
2065 }
2066#ifdef CONFIG_PROC_FS 1887#ifdef CONFIG_PROC_FS
2067 ide_remove_proc_entries(drive->proc, DRIVER(drive)->proc); 1888 ide_remove_proc_entries(drive->proc, driver->proc);
2068#endif 1889#endif
2069 auto_remove_settings(drive); 1890 auto_remove_settings(drive);
2070 drive->driver = NULL;
2071 spin_unlock_irqrestore(&ide_lock, flags); 1891 spin_unlock_irqrestore(&ide_lock, flags);
2072 up(&ide_setting_sem); 1892 up(&ide_setting_sem);
2073 spin_lock(&drives_lock);
2074 list_del_init(&drive->list);
2075 spin_unlock(&drives_lock);
2076 /* drive will be added to &ide_drives in ata_attach() */
2077 return 0;
2078} 1893}
2079 1894
2080EXPORT_SYMBOL(ide_unregister_subdriver); 1895EXPORT_SYMBOL(ide_unregister_subdriver);
2081 1896
2082static int ide_drive_remove(struct device * dev)
2083{
2084 ide_drive_t * drive = container_of(dev,ide_drive_t,gendev);
2085 DRIVER(drive)->cleanup(drive);
2086 return 0;
2087}
2088
2089/**
2090 * ide_register_driver - register IDE device driver
2091 * @driver: the IDE device driver
2092 *
2093 * Register a new device driver and then scan the devices
2094 * on the IDE bus in case any should be attached to the
2095 * driver we have just registered. If so attach them.
2096 *
2097 * Takes drivers_lock and drives_lock.
2098 */
2099
2100int ide_register_driver(ide_driver_t *driver)
2101{
2102 struct list_head list;
2103 struct list_head *list_loop;
2104 struct list_head *tmp_storage;
2105
2106 spin_lock(&drivers_lock);
2107 list_add(&driver->drivers, &drivers);
2108 spin_unlock(&drivers_lock);
2109
2110 INIT_LIST_HEAD(&list);
2111 spin_lock(&drives_lock);
2112 list_splice_init(&ide_drives, &list);
2113 spin_unlock(&drives_lock);
2114
2115 list_for_each_safe(list_loop, tmp_storage, &list) {
2116 ide_drive_t *drive = container_of(list_loop, ide_drive_t, list);
2117 list_del_init(&drive->list);
2118 if (drive->present)
2119 ata_attach(drive);
2120 }
2121 driver->gen_driver.name = (char *) driver->name;
2122 driver->gen_driver.bus = &ide_bus_type;
2123 driver->gen_driver.remove = ide_drive_remove;
2124 return driver_register(&driver->gen_driver);
2125}
2126
2127EXPORT_SYMBOL(ide_register_driver);
2128
2129/**
2130 * ide_unregister_driver - unregister IDE device driver
2131 * @driver: the IDE device driver
2132 *
2133 * Called when a driver module is being unloaded. We reattach any
2134 * devices to whatever driver claims them next (typically the default
2135 * driver).
2136 *
2137 * Takes drivers_lock and called functions will take ide_setting_sem.
2138 */
2139
2140void ide_unregister_driver(ide_driver_t *driver)
2141{
2142 ide_drive_t *drive;
2143
2144 spin_lock(&drivers_lock);
2145 list_del(&driver->drivers);
2146 spin_unlock(&drivers_lock);
2147
2148 driver_unregister(&driver->gen_driver);
2149
2150 while(!list_empty(&driver->drives)) {
2151 drive = list_entry(driver->drives.next, ide_drive_t, list);
2152 if (driver->cleanup(drive)) {
2153 printk(KERN_ERR "%s: cleanup_module() called while still busy\n", drive->name);
2154 BUG();
2155 }
2156 ata_attach(drive);
2157 }
2158}
2159
2160EXPORT_SYMBOL(ide_unregister_driver);
2161
2162/* 1897/*
2163 * Probe module 1898 * Probe module
2164 */ 1899 */
2165 1900
2166EXPORT_SYMBOL(ide_lock); 1901EXPORT_SYMBOL(ide_lock);
2167 1902
1903static int ide_bus_match(struct device *dev, struct device_driver *drv)
1904{
1905 return 1;
1906}
1907
2168struct bus_type ide_bus_type = { 1908struct bus_type ide_bus_type = {
2169 .name = "ide", 1909 .name = "ide",
1910 .match = ide_bus_match,
2170 .suspend = generic_ide_suspend, 1911 .suspend = generic_ide_suspend,
2171 .resume = generic_ide_resume, 1912 .resume = generic_ide_resume,
2172}; 1913};
2173 1914
1915EXPORT_SYMBOL_GPL(ide_bus_type);
1916
2174/* 1917/*
2175 * This is gets invoked once during initialization, to set *everything* up 1918 * This is gets invoked once during initialization, to set *everything* up
2176 */ 1919 */
generated by cgit v1.2.2 (git 2.25.0) at 2025-11-03 19:51:02 -0500